Re: [PATCH v4 0/5] Adding MMC Support on OMAP4430 SDP

["kishore kadiyala" <kishore.kadiyala@ti.com>]

----- Original Message ----- 
From: "Tony Lindgren" <tony@atomide.com>
To: "kishore kadiyala" <kishore.kadiyala@ti.com>
Cc: <linux-mmc@vger.kernel.org>; <linux-omap@vger.kernel.org>; 
<madhu.cr@ti.com>; <jarkko.lavinen@nokia.com>; <rmk@arm.linux.org.uk>; 
<paul@pwsan.com>; <santosh.shilimkar@ti.com>
Sent: Thursday, May 20, 2010 6:28 AM
Subject: Re: [PATCH v4 0/5] Adding MMC Support on OMAP4430 SDP


>* kishore kadiyala <kishore.kadiyala@ti.com> [100519 08:39]:
>> >
>> >FYI, the MMC on omap4 is not quite there yet at least
>> >on my board. It mostly detects the card with
>> >omap_4430sdp_defconfig, but fails always unless
>> >CONFIG_RTC_DRV_TWL92330=y.. This is without CONFIG_SMP
>> >as it oopses.
>>
>> Hope you are referring CONFIG_RTC_DRV_TWL92330 to omap3_defconfig
>> and not to omap_4430sdp_defconfig.
>
> Sorry I meant CONFIG_RTC_DRV_TWL4030 in the omap_4430sdp_defconfig.
> If you take that out, MMC is never detected.

Even disabling  CONFIG_RTC_DRV_TWL4030 in  omap_4430sdp_defconfig, card gets 
detected
always on booting up.

>
>> With omap_4430sdp_defconfig , I've tested on 4430SDP and Blaze and always
>> Cards on MMC1 & MMC2 gets detected once bootedup.
>
> Are you able to actually mount root on the MMC with let's say
> current linux-omap master branch?

Yes I booted with file system mounted on card present on MMC1,
and I can see cards getting detected properly and also filesystem gettting 
mounted.

Here are the boot logs with "CONFIG_RTC_DRV_TWL4030 " disabled and 
filesystem
on ext2 partition of card present on MMC1
http://pastebin.mozilla.org/726228

Regards,
Kishore

>
>> >Also MMC is never detected with omap3_defconfig.
>>
>> With omap3_defconfig  +  disabling "CONFIG_OMAP_RESET_CLOCKS",
>> I've tested on 4430SDP and Blaze and always Cards on MMC1 & MMC2
>> gets detected on bootup.
>
> That should be fixed so CONFIG_OMAP_RESET_CLOCKS works. Otherwise
> we're relying on some random clocks being enabled.
>
>> >I've piled all these patches into linux-omap master branch
>> >for easy testing. Let me know if I missed some patch.
>>
>> Following is the commit ID :1674c0ceabfb7726246989874bb4da7bcb55ea89
>> used on LO master branch for testing. All the patches were merged.
>
> OK, thanks for checking that.
>
> Regards,
>
> Tony
>